Subaru WRX STI Base 2015 with 19×9.5 / 19×9.5-inch Option Lab S718 Wheel

About This Subaru WRX STI Base 2015 Build

We love featuring real builds from real owners. This Subaru WRX STI Base 2015 sits on a set of 19×9.5 / 19×9.5-inch Option Lab S718 wheels, and the result speaks for itself.

The owner chose Option Lab for a reason. This brand delivers serious quality and a design language that turns heads at every car meet. We see hundreds of Subaru WRX STI Base builds come through WheelFront every month, but this one stands out. The combination of the exterior with the Option Lab S718 creates a look that balances aggression with elegance.

Fitment Breakdown: Option Lab S718 on the Subaru WRX STI Base 2015

I walked around this STI at the shop, and the stance is perfect. We are looking at 19x9.5 Option Lab S718 wheels with a 35 offset all around. That 9.5-inch width really fills out the wheel wells on this VA chassis.

The 35 offset pushes the wheel right to the edge of the fender. It creates a flush look that most Subaru owners chase for years. We love how it balances aesthetics with the car's aggressive lines.

Clearance for those massive Brembo calipers is a common headache on this platform. The S718 barrel design clears them with room to spare. You will not need any spacers to make these fit your stock STI brakes.

The 5x114.3 bolt pattern matches the hub perfectly. We appreciate a hub-centric fitment because it prevents those annoying high-speed vibrations. You get a direct, solid connection between the wheel and the hub.

Because the car sits on air suspension, the geometry changes the second you hit the switch. At ride height, the fitment is spot-on. When you air out, the tires tuck neatly behind the fender lips.

Watch out for rubbing on the fender liner clips if you drive low. We recommend a slight roll on the rear fenders if you plan to run a meaty tire. A little extra clearance keeps your paint looking fresh.

The 19-inch diameter fills the arch more than the standard 18s. It gives the car a modern, sophisticated presence. We think it transforms the entire silhouette of the WRX STI.

What We Recommend for Subaru WRX STI Base 2015 Owners

Do not go wider than 9.5 inches unless you want major fender work. We find 9.5 to be the golden ratio for the VA chassis. It offers maximum grip without compromising your steering geometry.

Stay within the +35 to +38 offset range for the best results. Anything lower than +30 will poke too far and kill your fenders. We always prefer a square setup for easier tire rotations and predictable handling.

Tire choice matters just as much as the wheel size. A 255/35/19 tire works beautifully on a 9.5-inch wide rim. It gives you a square sidewall that protects the lip from curb rash.

Avoid excessive tire stretch if you actually drive your car hard. We see too many builds with rubber-band tires that ruin the ride quality. You want a functional setup that looks aggressive but handles the corners.

If you stick to stock suspension, keep an eye on your alignment specs. Dialing in a little negative camber keeps the tires from chewing up your fender tabs. Proper alignment is the cheapest performance upgrade you can buy.

Style and Build Analysis

The Machined finish on these S718s pops against the paint. It catches the sunlight and adds a premium feel to the raw STI aesthetic. We think the contrast is brilliant for a daily-driven street car.

The seven-spoke design feels like a modern take on classic rally heritage. It looks light, purposeful, and fast even when the car is parked. We have seen a dozen wheel styles on this car, but this one just works.

Proportions are everything when you modify a wide-body platform like this. The 19-inch diameter balances the size of the STI body panels perfectly. It feels like the car was designed to wear these specific wheels.

Compared to the typical flat-black aftermarket wheels, the Machined finish feels intentional. It grabs your eye without screaming for attention. We prefer this clean, polished look over loud, neon trends.

The way the spokes meet the barrel adds depth to the overall profile. It gives the car a muscular, planted stance from every angle. This is exactly how an STI should look when it hits the local meet.

Why We Love This Build

Seeing this STI air out in the parking lot was a highlight of my week. The Machined finish glows under the streetlights, making the wheels look like they were carved from solid steel. The way the arches tuck over those S718s creates a seamless flow that makes us stop dead in our tracks.

This build proves that you do not need over-the-top parts to create a masterpiece. It is all about choosing the right specs and hitting that perfect flush fitment. Every time I see this car, I get the itch to start another project of my own.

We absolutely love this setup because it hits the sweet spot between form and function. It is a clean, aggressive, and perfectly executed vision of what a VA chassis can become. This is the gold standard for Subaru fitment.

Full Specs Breakdown

Here is exactly what this owner is running. We break down every detail so you can replicate this build or use it as a starting point for your own setup.

  • Car Make & Model: Subaru WRX STI Base 2015
  • Vehicle Color:
  • Wheel Brand & Model: Option Lab S718
  • Wheel Size: 19×9.5 / 19×9.5
  • Offset: 35 / 35
  • Wheel Finish: Machined
  • Tires: Yokohama ADVAN Sport V105 245/35 25.8″x9.6″ / 245/35 25.8″x9.6″
  • Suspension: Air Suspension

Before You Buy: Fitment Checklist

Wheel sizes explained - diameter, width, offset and backspacing guide
Understanding wheel sizing: diameter, width, offset and backspacing all affect fitment on your Subaru WRX STI Base.

We talk to Subaru WRX STI Base owners every day. These are the questions we hear most before they pull the trigger on new wheels.

Will 19×9.5 / 19×9.5-inch wheels fit my Subaru WRX STI Base? Yes, but fitment depends on width, offset, and tire size working together. A wrong offset means rubbing. A wrong tire size means poor handling. Always verify all three.

Do I need to modify my fenders? That depends on your offset and suspension. A conservative offset with stock ride height usually fits without modification. Go aggressive and you may need to roll or pull your fenders.

Can I daily-drive this setup? Absolutely. Thousands of Subaru WRX STI Base owners run 19×9.5 / 19×9.5-inch wheels every day. The key is choosing the right tire with enough sidewall to absorb road imperfections.

Subaru WRX STI Base2015 with 19×9.5 / 19×9.5-inch Option Lab S718 Wheel Gallery

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